title: Evaluation of selected speech parameters after prosthesis supply in patients with maxillary or mandibular defects.
abstract: BACKGROUND
  Ablative surgery of oropharyngeal tumors frequently leads to defects in the speech organs, resulting in impairment of speech up to the point of unintelligibility. The aim of the present study was the assessment of selected parameters of speech with and without resection prostheses.
  
  
  METHODS
  The speech sounds of 22 patients suffering from maxillary and mandibular defects were recorded using a digital audio tape (DAT) recorder with and without resection prostheses. Evaluation of the resonance and the production of the sounds /s/, /sch/, and /ch/ was performed by 2 experienced speech therapists. Additionally, the patients completed a non-standardized questionnaire containing a linguistic self-assessment.
  
  
  RESULTS
  After prosthesis supply, the number of patients with rhinophonia aperta decreased from 7 to 2 while the number of patients with intelligible speech increased from 2 to 20. Correct production of the sounds /s/, /sch/, and /ch/ increased from 2 to 13 patients. A significant improvement of the evaluated parameters could be observed only in patients with maxillary defects. The linguistic self-assessment showed a higher satisfaction in patients with maxillary defects.
  
  
  CONCLUSIONS
  In patients with maxillary defects due to ablative tumor surgery, an increase in speech performance and intelligibility is possible by supplying resection prostheses.
authors.affiliation: Department of ENT, University Hospital 'Carl Gustav Carus', Technische Universität Dresden, Germany.
authors.forename: Rainer
authors.initials: R
authors.lastname: Müller
authors.forename: Andreas
authors.initials: A
authors.lastname: Höhlein
authors.forename: Annette
authors.initials: A
authors.lastname: Wolf
authors.forename: Jutta
authors.initials: J
authors.lastname: Markwardt
authors.forename: Matthias C
authors.initials: MC
authors.lastname: Schulz
authors.forename: Ursula
authors.initials: U
authors.lastname: Range
authors.forename: Bernd
authors.initials: B
authors.lastname: Reitemeier
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017266:Dental Prosthesis / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007573:Jaw Neoplasms / Q000150:complications* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019736:Prostheses and Implants; D013064:Speech Disorders / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control*; D013068:Speech Production Measurement / Q000379:methods; D016896:Treatment Outcome